GE Energy
New enhancements for the 9FA Gas Turbine Delivering higher performance and greater operational flexibility
GE Energy’s F-class gas turbines set the standard. GE was the first to: • introduce F-class technology to the industry • r ecord 100% reliability for an F-class turbine over an 108-day period of continuous operation • r each 99.4% reliability on an F-class turbine • r ecord 28 million fired hours on an F-class turbine in worldwide service • s hip more than 1,000 F-class turbines • r each 55% thermal efficiency in F-class commercial combined cycle operation • a chieve 40% load with single digit NOx and CO on an F-class turbine • c onstruct an F-class turbine for an IGCC application
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9 FA N E W E N H A N C E M E N T S
Meeting customer needs …
Customers are continually seeking ways to deliver greater operational flexibility and higher levels of performance, availability and reliability while minimizing operating costs and meeting increasingly rigorous environmental criteria. By accumulating data from the world’s largest “F” gas turbine fleet and using our performance database from GE’s monitoring and diagnostic center, GE engineers are continually finding new ways to provide enhanced performance and operational flexibility for today and tomorrow.
9FA NE W ENHANCEMENTS
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Advancing technology… offering additional customer value Improved Performance GE Energy has engineered a Cooling Optimization Package
technology leadership. With more than 28 million F-class
that is now available as a retrofit package for 9FA.03 models
hours of successful DLN operation and over fifteen million
and as an optional package on all new 9FA’s. Providing
hours at or below 9 ppm NOx, GE has the experience
improved heat rate and output, this package maintains the
and technology leadership to help meet customer
9FA’s unmatched levels of reliability and availability. Benefits
emission objectives. GE’s DLN2.6+ Combustion System is
of the Cooling Optimization Package translate into lower
ecomagination certified and is enabled through GE’s Mark*
operating costs and improved revenues for 9FA users in both
VIe control platform .
simple-cycle and combined-cycle operation.
The DLN 2.6+ Combustion System offers the following
The Cooling Optimization Package incorporates
customer benefits and features.
GE’s advanced technology which is based on a keen
• Lower gas turbine emissions – capable of 20 mg/Nm3 for
understanding of the physics of the entire 9FA gas turbine cooling system. GE engineers from around the world focused on the turbine’s operational environment, which includes ambient conditions, load ranges and start sequencing, to develop this new package. The package offers customers improved output and efficiency by more effectively managing the temperature and volume of cooling airflow, minimizing
both NOx (@ 15% O2) and CO • Improved turndown capability down to 35% of full load – lowers fuel costs and reduces cycling requirements during off-peak hours, resulting in fewer starts and faster dispatch capability – units remain online and full load capacity can be reached more quickly
pressure drops and diminishing the effect of turbine
• Enhanced fuel flexibility for varying fuel compositions
clearances.
• Increased revenue potential from developing NOx credit trading markets
Cooling Optimization Package
• Improved system availability through 24,000 hour extended
CC Heat rate reduction
up to –0.5%
CC Output
up to +0.7%
SC Heat rate reduction
up to –1.1%
The DLN 2.6+ Combustion System can be installed at a
SC Output
up to +1.2%
combustion, hot gas path or major inspection. Continuous
With no additional impact on the life of the parts
Reduced Emissions
combustion inspection interval
dynamics monitoring and remote DLN tuning are available as an additional package benefit/feature. This system is also available as an option on new units.
Economic and regulatory requirements are placing greater
Increased Operational Flexibility
pressure on the operation of gas turbines. Higher fuel prices
Power generation industry changes are driving the need
are driving a greater cyclic operation and increasing emission
for more operational flexibility. Varying business model
requirements are pressuring the amount of time a turbine
operational profiles are transitioning from traditional
may operate.
baseload operation to mid/cyclic-operation, with nearly 50%
Since its first installation in 2006 the DLN 2.6+ Combustion
of operating hours <100% load.
System from GE Energy has provided customers increased
The OpFlex* suite of offerings, enabled by GE’s Mark VIe
operational flexibility at a reduced cost of operation. This
control platform, provides an array of products to improve
enhanced system builds upon decades of GE combustion
plant operating performance and flexibility. *Mark and OpFlex are registered trademarks of the General Electric Company.
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OpFlex Extended Turndown …
OpFlex AutoTune …
providing low emission operational flexibility
real-time tuning and boundary control for greater flexibility
The OpFlex Extended Turndown Package extends the
As fuel availability and variability becomes more
operating range at which emissions levels can be maintained
commonplace, customers will look to more flexible solutions.
at lower load levels by increasing gas turbine turndown capability. By reducing the minimum turndown level, operators are able to reduce the amount of fuel consumed during off-peak hours and avoid shutdown/start-up costs. The package also minimizes maintenance requirements associated with shutdowns and allows the customer to respond to short demands for electricity.
OpFlex Auto Tune, GE’s latest operational flexibility enhancement, minimizes the need for seasonal combustor tuning in order to maintain emissions compliance. OpFlex AutoTune will provide customers with the ability to operate their units within their current fuel specification without the need for manual combustor retuning. This enhancement uses the next-generation of GE’s Model Based Control. The new Control System provides more stabilized combustion
Benefits • Reduced fuel consumption to remain on-line during offpeak hours due to lower turndown level
characteristics so customers can capitalize on a wide range of ambient conditions and fuel variations without any system instabilities, maintenance impacts or increase in emissions.
• Increased revenue resulting from improved dispatch priority by staying online and eliminating startups and
This enhancement provides the following key benefits.
shutdowns
• Eliminates combustion retuning due to changes in ambient
• Lower greenhouse gas emissions due to reduced fuel consumption
conditions and fuel variation • Enables continuous reliable operation of the unit with up to +/-7.5% variation in modified Wobbe index
• Increased potential of spinning reserve credits • Minimized maintenance associated with cyclic operation
• Removes unplanned tuning, combustion dynamic and noncompliance NOx and CO events
9FA
Baseload
9FB
Baseload
• Increases reliability through improved dynamics stability and fuel market leverage • Reduces fuel costs by eliminating manual tuning • Enhances turbine performance by maintaining firing temperature target
20 mg/Nm3
30 mg/Nm3 to 50 mg/Nm3
• Improves confidence that turbine operation can be maintained within emission limits • Increases fuel supply flexibility leading to lower negotiated fuel prices
50% GT Load 30 mg/Nm3
OpFlex* Extended Turndown
Applicability OpFlex AutoTune is for GE 9FA gas turbines with DLN2.6+
40% GT Load 35% GT Load
combustors, Mark Ve or VI Control Systems with Combustion
38% GT Load
Dynamics Monitoring Systems.
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9FA Applications Powering more than the grid … GE Energy’s wide range of flexible power generation
9FA fleet – 200+ units sold, 170+ in operation in more than 25 countries
applications for the 9FA gas turbine include combined-cycle, cogeneration and simple-cycle peaking in both cyclic and baseload operation using a wide range of fuels.
Data as of April 2009
• IWPP – water desalination • Aluminum – energy for smelters • Refineries – use of process gas and flare gas for O&G upstream • District Heating – use of CHP (combined heat & power) • Steel – use of blast gas or Corex gas
More than 7 million fired hours and 74,000 fleet starts
• Pulp and Paper – manufacturing process
Data as of April 2009
System reliability and availability … leading the industry, maximizing customer operational time GE is a leader in industrial application experience …
Through an independent third party data source, ORAP* indicates that GE’s F-class continues to lead F-technology gas turbines in reliability and availability. This high reliability and availability rate translates to increased operability and reduction in life-cycle cost for our customers. Source: ORAP®; All rights reserved: SPS®
Served 2.3 days more per year of required operation
GT Equipment Reliability (July ’07-June ’08)
… supporting alternate fuel choices and enabling customer self generation
%
2007
GT Equipment Availability (July ’07-June ’08)
2Q08
Available 8 days more per year
% 2007
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2Q08
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To learn more about this offering, contact your GE Energy sales representative or visit www.ge-energy.com
© 2009 General Electric Company. All rights reserved. GEA17570 (05/09)
